Finding the Fourth Proportional to 748,865,350.20, 1,123,298,025.30 and 727,341,989.70
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Solution
The fourth proportional to 748,865,350.20, 1,123,298,025.30 and 727,341,989.70 is: 1,091,012,984.55
Step by Step Solution
- Step 1: Write the proportion equation
748,865,350.20 : 1,123,298,025.30 = 727,341,989.70 : x - Step 2: Convert to fraction form
748,865,350.20/1,123,298,025.30 = 727,341,989.70/x - Step 3: Cross multiply
748,865,350.20x = 1,123,298,025.30 × 727,341,989.70 - Step 4: Simplify right side
748,865,350.20x = 817,021,820,747,782,912 - Step 5: Solve for x
x = 817,021,820,747,782,912/748,865,350.20 - Step 6: Final answer
x = 1,091,012,984.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.